Electrically heated steam radiator



Aug. 30, 1949. v H. J. FREYMAN v 2,480,809

ELECTRICLLY HEATED STEAM RADIATOR Filed May 5, 1945 3 Sheets-Sheet lINVENToR.

HERBERT J. FKEYMAM M a M4 4 Aug. 30, 1949. H. J. FREYMAN 2,480,809

ELECTRIGALLY HEATED STEAM RADIATQR Filed May 5, 1945 3 Sheets-Sheet 2IN1/EN TOR. HERBERT J. FRfYM//M ATTORNEY Aug. `30, 1949. H. .1. FREYMAN2,480,809

` ELECTRICALLY HEATED STEAM RADIATOR Filed May 5, 1945 3 Sheets-Sheet 5IN VEN TOR.

A TTU/@VE Y Patented Aug. 30, 1949 ELECTRICALLY HEATED STEAM RADIATORHerbert J. Freyman, New York, N. Y.; Jay Freyman administrator of saidHerbert J. Freyman,

deceased Application May 5, 1945, Serial No. 592,179

2 Claims. l

This invention relates to electrically operated steam radiator.

An object of this invention is to provide a sectional radiator of thecharacter described including electrical heating means therefor, saidelectrical heating means comprising an insulating holder for heatingcoils, and said holder being formed of sections which may be built up sothat its length will correspond to the number of sections in theradiator.

Another object of this invention is to provide an electrically heatedsteam radiator provided with means to switch the electricity for theheating coil on and off at a set pressure, and which is further providedwith a thermostat to switch the current for the heating coil on and "offat a set temperature.

Yet a further object of this invention is to pro vide an electricallyheated steam radiator of the character described provided with means toindicate the level of the water within the radiator, said radiator beingfurther provided with a filling means for adding water thereto, whennecessary.

Still a further object of this invention is to provide a strong, ruggedand durable portable radiator of the character described which shall berelatively inexpensive to manufacture, which shall be fully automatic inoperation, and yet practical and eiiicient to a high degree in use.

Other objects of this invention will in part be obvious and in parthereinafter pointed out.

The invention accordingly consists in the features of construction,combinations of elements, and arrangement of parts which will beexemplified in the construction hereinafter described, and of which thescope of application will be indicated in the following claims.

In the accompanying drawings, in which is shown various possibleillustrative embodiments of this invention;

Fig. 1 is a front elevational view of an electrically heated portablesteam radiator embodying the invention.

Fig. 2 is an end view thereof.

Fig. 3 is a partial elevational cross-sectional view through part of theradiator.

Fig. 4 is a side elevational view of the heating element with partsbroken away and in cross-section.

Fig. 5 is an end view of the structure shown in Fig. 4.

Fig. 6 is an enlarged partial view of the heating element.

Fig. 'I is a top plan view of one of the sections of the wire holderwith parts broken away and in cross-section.

Fig. 8 is an end view of the structure shown in Fig. 7.

Fig. 9 is a side elevational view of the heating element withdrawn fromthe tubular casing faucet element.

Fig. 10 is a fragmentary end view of the structure shown in Fig. 9.

Fig. 11 is a front elevational view of a modified form of electricallyheated portable steam radiator embodying the invention.

Referring now in detail to the drawing, I0 designates a portableelectrically heated steam radiator embodying the invention. The samecomprises a fiat platform or base I I mounted on rollers or casters I2.Mounted on the base II is a radiator casing I3. The same comprises endsections I4 and I5 and intermediate sections l5. The sections areassembled together by top and bottom tie bolts I'I and I8 in aWell-known manner. Each of the sections I6 is formed at the top andbottom with oppositely projecting tubular flanges I9 and 20. The tubularportions 2Q are formed with internal screw threads 2|.

Screwed to the screw-threaded openings 2| are tubes 22. Each tube 22projects into a flange IB of the next section. y

Section I4 has flanges 25 receiving the tubes 22 of the nextadjacentsection I6. Said section I4 has oppositely extending tubularflanges 25 at the top and bottom. Screwed to the top flange 2E is areducing plug 2'I.

The end section I5 has at the top and bottom, flanged openings 28 on oneside, which contact the adjacent flanges I9 of one of the sections I 6.Said end section I5 has annular flanged openings 29 extending oppositelyto anged openings 28, at the top and bottom. The upper flanged opening29 is closed by a plug 30.

The end sections I4 and I5 are provided with legs I4a and I 5a whichcontact the base I I. Said legs are formed with screw-threaded openings32 to receive studs 33 which pass through suitable openings in theplatform II. The studs 33 thus serve to fix the radiator casing I 3 tothe platform.

Means are provided to indicate the level of water in the radiator and toadd Water to the radiator. To this end there is screwed to the flangedopening 29 a reducing plug 34 and connected thereto by means of a nippleis a T-tting 35. At the bottom of the T-tting 35 is a valved drain 30.Connected to the T-iitting by means of a nipple is an elbow 3'I to whichis attached a vertical nipple or pipe 38. Connected to the upper end ofthe nipple 38 is a ller cap 39 provided with a closure plug 40. Attachedto the central portion of the T-tting is a vertical glass tube 4I. Atthe upper end of the tube 4I is an elbow 5 tting 44 provided with anupwardly extending reduced opening 45. Attached to the reduced opening45is an' air 1valveg. Olieliranchoffthe:` T-conneetionfMt` is; connectedby a nipple 41 to-` the end section I5. Water may be entered into 10 theradiator about once a year through the fillet" cap 39. The water tube 4IshowsitheleveLoithe water within the radiator.

Means is provided to heat tlrvvatenintheiradie ator. iianged opening 26of the end section I4, a screwthreaded sleeve 50. Screwedwithinethesl-eeve is a horizontal metal tube 5I. The tube 5l'may be madeof brass and has a screw-threadedpor= tion 52 engaging the internalthreads of the sleeve 20 53.: Extending-,from theescrewrthreadediportionf.

52 is a tubular portion 54 which passessthrough` the` lowerr ends-.'of;4the: sections I4 i and; ligand projecting into the lower end of sectionl5.- At: the fend of.1 theetubular.- poitiorrdsis; aniend 'wall 25 55.At` the opposite; end.-u o;- membesc' 5.!1 is, an. enlarged polygonalintegral nut or headi55. to` facilitate-screwingloiitheetubefinttheesleeve 53.

Projecting into the tube 5| is aheatingqunite.,

Unit. Ell lcoI-nprisess` aapl-uralityfof. similar rods# 5 l 30`assembled i in f tandemi. Eachyof. the rods Eihas@ four throughopeningssh Thalengthlofieacnrod.

6j i mayibeequivalentrto the-Width tof. one on more of v.thefsectionsiofi radiatori Thusfthenumber. of

rods 6 I. employed will. depend.:uponfthenumber; 35

of: sections inthe radiator., The; rodeay 6.!`e are. assembled,ywith\the.-. openingsj 62 in .registrationl The rods Sl.aremadewheat-resisting,felectrical. insulating.material.rsuchiasiporcelain.. At one. end. of.A the.. assembledrodssisi-a.- disc GLmade, of: 40 similar material... Dismlamayjbesquarewththef corners cutoff. It-.is yformediwith four-.opgeningsI B5adapted .to register-withihe;openings.i62.. At-. tached tothedisolllarel a painot bindingzpostsf 66.. The .bindingpost`s..65.,maybe=in theefor'mof. 45 screws .securedgtb .the-disc.anriprojectingetheref.` from- On each'.bindingI post l'tiare-.a.painoilock... nuts 6T. Threaded through the.- openings 62..i's a heatlnggcoil68, whichis inone continuous p iece, threaded.' backl and *forththrough-the openings $2.. 50 The ends of'the coil '68are att'acliedtotheY bind# ing post 6E,v betweentth'e'lockrrrutst. The heat ing coil"holds the`rods'A 6'1"' in assembled; relation:

Additional wires 69 may,be"tvs/'istedfwith'theA termina-lportions'of'ftlie coil "68 and'iiisertedinto, 55 theopenings"l 552 suchconstructirnr preventing' the terminals frombecomihg toohot`fbyreduc-inge electri'c'airesistance? The disc' 64 mayfbcimount-'l ed"ivitl'iiirv an outlettbox- TU?V THe-outl 'boxf 'l0-' hasa=bottom1walll=12| c'ontactiixgfthe;reart surface 50 of disc 54. The rodiiiliadjac'entthefdisc'passesthroughvanfopeningeinithe bottorrnwallillfa Said discymay;furthermoribeattachedito said bottom wall by Ascrews:` 1132.--

In the formsofzhefinvention llustratedtinlligs: 1 and 2;. there: ismountediontherplatf orrrr.l HI- and. contactingtheendsectionlAsazwertical-c'asing-.;'l5.f Casing l5fmay4haveffront andrea-r walls4fand an' end'wall` 1.1; Mountedionfthe.front wall .16; is; an onV and."oi switch: 18.Which.mayf be 70 suitably;` eleciu'ically`v connected-wto the binding-` posts 66;; Theon? and "oii switch maybe in th'e form:of azusual snapswitch1to tur-1r. the. current z forV thei heating;rcoil.l on andi-off.

To this end there is screwedtovthe-lowen 15 ably interposed in thecircuit of the heating coil so as to glow when the current is on and tobe extinguished when the current is oft Also connected to the circuitfor the heating coil is a cable provided at one end with a plug Si forattachment to a Wall socket to supply current for the heating coil.

ReeessedginV the box 1551s a`4 thermostat 32, as forexample; a'.MinneapolisHoneywell thermostat which closes and opens the circuit tothe heating element on temperature setting. The temperature atvrhich.the circuit is closed and opened may be adjusted by turning handle 83.Suchthermostatiswell known in the art and may-be conneotedto the circuitfor the heating element in a'lwell-known manner.

Thereducing plug 21 is provided with a reduced outlet to which isconnected a pressure sensitive svvitchzi such as al\./IinneapolisHoneywell Pressure Trol, which cuts the current on andoil ata predetermined: seti; pressure..

In Fig. 11 a modification is shown-which infall: general .respectez is`similar. to ;-the-orm shownJin Rigs. 1 and2; However:in ,thisfforrmthefcasingg l5 is omittedand the Pressure Trol 85a. isfcon nectedto thetopgflange 2S. through the inter;` mediary of. the loopedtube. 55.Electricalconf nections between theA pressure switch a.- and; switchla.arev enclosedinI conduit -91- and from switch 18a, to outlet box'ithrough conduit t?, In Vthis modicationthe-.thermostat ,82a isrnountedbeside switchv 18a.. instead. of. aboveit as in-r the` preferred form;

It .will be understood-that: the radiator is `fullyr automatic in everyway. If. thesnapfswitch.itl orA 18a.is.on theradiator is controlled bythe thermostat switch 82 or 82a until the setting on. the thermostat issatised, unless the steam pressure risesabove the-set-,safety-limit, inwhich. case the Pressure Trclswitch 85:'or 35a. is activatedto open.the. electric circuit. When the. pressure is reduced belowthe safeworkingpres sure, the switch 85 or. 85a will-againclose the. cir-U cuit.The radiator operates at low current con-VVA sumption. The visibleAwater. gauge. indicates when it is necessary toadd water. The deviceisalways ready for immediate use, vonce the prop-- er amount of water is.intheradiaton Thera diator maybe. ona platform on.-rollers and can..easily be moved around; however; .it will bezun derstood thattherplatorm'maybe omitted ifit be desired to have the radiatorpermanently lo.- cated. It can be plugged into any electrical outlet. Apilotlight i8 indicates when theradia tor is in operation.

It willthusbe seen that-there is provided ade. vice inwhichthe severalobjects of this invention are achieved, and which .is welladapted tomeet. the conditions of practical use.

As various possible embodiments might vbe made of the above invention,and asvariouschanges. might be made in the embodiments aboveset forth,it is to be understood that all matterhere in set forth or shown in theaccompanying draw-.- ings is to be interpreted as illustrative and-.notin af limiting sense.

Having thus describedrmy, invention, what I7 claim` as new and desirelto. secure by Letters Patent, is:

1. A sectional radiator, a heating element for. the'radiator comprising.a plurality of'rods of heat-resisting electrical insulatingmaterialfhavr-A ingthrough openings,A said'rods-'being arranged end toend in aXial alignment with their through. openingsaligned,.a.continuousfheating coil p assing back and forth through saidregistered openings, said heating coil being the sole means of unitingsaid rods, and means to attach the two ends of the heating coil to acurrent supply.

2. In combination, a sectional steam radiator, the sections of saidradiator forming a passage extending through the radiator, a metal tubescrewed to one of the sections and extending through said passage, and aheating unit Within said tube, said heating unit comprising a pluralityof rods in axial alignment, said rods being made of heat-resisting,electrical insulating material, and formed with registering throughopenings, and a continuous heating coil threaded back and forth throughsaid openings, said heating coil being the sole means of uniting saidrods, a disc at one end of an end rod, binding posts on the disc, theends of said heating coil being attached to said binding posts.

HERBERT J. FREYMAN.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 1,158,723 Ross Nov. 2, 19151,355,867 Thompson Oct. 19, 1920 1,409,647 Bardill Mar. 14, 19221,430,706 Wallmann Oct. 3, 1922 1,437,119 Speck Nov. 28, 1922 1,462,703Jones July 24, 1923 1,499,192 Parkhurst June 24, 1924 1,528,495 LennigMar. 3, 1925 1,619,865 Head Mar. 8, 1927 1,680,104 Head Aug. 7, 19281,909,593 Parsons May 16, 1933 1,945,139 Du Chemin Jan. 80, 1934

